Method and Apparatus for Qubit Error Detection

Simple SummaryContent extracted from patent full text and abstract with AI.

This invention provides a method and apparatus for detecting errors in data qubits (used in quantum computing) by using parity qubits that are moved close to the data qubits to check their state. The system ensures that parity qubits, which are more stable, are moved faster and over longer distances than the more error-prone data qubits, reducing the risk of introducing new errors during the detection process. By carefully managing the movement and interaction of these qubits, errors in the quantum computing process can be reliably detected without increasing the overall error rate.

Use CasesContent extracted from patent full text and abstract with AI.

• Quantum computer hardware design to improve fault tolerance
• Error correction modules for quantum processors in large-scale quantum computers
• Development of more reliable quantum memory systems
• Implementation in quantum communication systems requiring high data integrity
• Academic research in quantum error correction and scalable quantum architectures

BenefitsContent extracted from patent full text and abstract with AI.

• Reduces risk of inducing errors in fragile data qubits during error checking
• Allows for scalable and continuous error detection in quantum systems
• Uses more stable parity qubits for fast movement, improving overall efficiency
• Minimizes technical complexity by avoiding the need to reset and reuse parity qubits
• Improves reliability and operational fault-tolerance in quantum computing hardware
• Can be integrated with a range of quantum architectures, such as semiconductor and spin-based qubits

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Patent Abstract

The invention relates to a method and an apparatus for detecting a state of a data qubit (6, 7, 10) with the aid of a parity qubit (1, 2, 11, 12), wherein both the data qubit and the parity qubit can be moved by a movement device, with the spacing between the data qubit and the parity qubit being so great that the parity qubit cannot query the state of the data qubit (6, 7, 10), with the spacing between the data qubit and the parity qubit being reduced by moving the data qubit along a first path and by moving the parity qubit along a second path, until the state of the data qubit (6, 7, 10) can be queried by the parity qubit, characterized in that the first path is longer than the second path and/or in that the speed of movement of the parity qubit (1, 2, 11, 12) is greater than the speed of movement of the data qubit (6, 7, 10).